Filling end parting and clamping mechanism



Dec. 3,1940. 7 E. c. NICHOLS FILLING END PAR'I'ING AND CLAMPINGMECHANISM Filed June 19, 1940 I INVENTOR. EDWAED GMCHOLS.

ATTORNEYLQ Patented Dec. 3, 1940 UNITED STATES PATENT OFFICE FILLING ENDPAB TlNG AND OLAMPIN G MECHANISM poration of Maine Application June 19,1940, Serial No. 341,330

7 Claims.

The present invention pertains to automatic filling replenishing loomsand has more particular reference to filling end parting and clampingmechanism for such looms.

The operation of the filling replenishing mechanism of the conventionalautomatic loom results in the formation of a length of filling, calledan outgoing filling end, which extends from the cloth selvage to theoutgoing filling carrier. The outgoing filling end, particularly inbobbin changing looms, must be severed at a point between the clothselvage and the filling carrier at about the same time the fillingcarrier is ejected from the loom. Preferably, the part or branch of suchfilling end which extends from the selvage to the point of severing isclamped and withdrawn out of range of the weaving instrumentalities.There is accordingly provided in such looms a movable carrier havingparting and clamping blades thereon, the carrier and blades beingusually manipulated so as to part and clamp the outgoing filling end andwithdraw it out of range of the weaving instrumentalities simultaneouslywith the transferring operation. In looms of the type above referred tothe carrier is usually slidably mounted in a guide and reciprocatedtherein toward and from the shuttle box. In such constructions the guideis usually mounted so that the path of reciprocation of the carriage isinclined to or at an acute angle with the longitudinal center line ofthe lay. By having the carriage and parting and clamping bladesreciprocate along a path inclined to or at an acute angle with thelongitudinal center line of the lay, the parting and clamping blades arecloser to the cloth selvage at the forward end of their stroke than atthe rearward end thereof. This is done to prevent stretching of theoutgoing filling end as it is withdrawn forwardly from the shuttle boxafter being severed.

By withdrawing the spent filling end from the shuttle in the mannerabove described and moving the clamped end towards the cloth selvage,slack is produced in the outgoing filling end which facilitates itspassage through the longitudinal slot in the front box plate, and inaddition such withdrawal prevents undue tension being placed on theoutgoing filling end which tension may result in a shiner in the clothor in the breakage of the filling end between the clamping blades andthe cloth selvage thereby leaving a free end which may be caught in theshedproducing a defect in the cloth. However, the angle or inclination,between the path of reciprocation of the carriage and the longitudinalcenter line of the lay, which will produce the proper slack in theoutgoing filling end varies according to the particualr type of clothbeing woven, the particular type of thread used and the variation in thebeat of the cloth. 5

Accordingly it is the principal object of the present invention toprovide an automatic filling replenishing loom having bobbintransferring mechanism, a lay having a shuttle box thereon, a carrierhaving parting and clamping 10 blades mounted thereon and movabletowards and from the shuttle box, a guide in which the carrier moves, abracket for supporting the guide, comprising two members adjustableabout a Vertical axis whereby the angle between the 5 path ofreciprocation of the carriage and the longitudindal center line of thelay may be adjusted to provide the proper slack in the outgoing fillingend upon withdrawal of such end from the shuttle box after beingsevered. (20

The foregoing and other objects of the invention are accomplished by theconstruction illustrated on the accompanying drawing, of which:

Fig. l is a perspective view of the parting and clamping mechanismshowing the preferred embodiment of my invention applied thereto; and

Fig. 2 is a perspective view to a large scale of the two-piece mountingbracket shown on Fig. 1.

The loom to which my invention has been applied is but partially shownon the drawings, the parts omitted being of conventional constructionand not of the present invention.

There is shown a part of a right hand loom side I carrying a rotaryhopper 2, and part of the r bobbin transferred mechanism including atransfer hammer 3 mounted on a stub shaft 4 in the hopper. v

The lay 5 reciprocates forwardly and rearwardly in the usual manner andis provided with 40 a shuttle box 6 for receiving a shuttle l. Operationof the transferring mechanism results in the formation of the out-goingfilling end which must be parted somewhere close to the shuttle box andone branch clamped and withdrawn 5 from the path of the lay and shuttlebox.

The parting and clamping mechanism shown may be supported from the stubshaft 4 by means of a bracket adjustably mounted thereon. Such bracketmay include an upper member 8 and a lower member 9. The member 8 isadjustably mounted on stub shaft 4 by means of set screw l0 and has ahole I l adjacent its rear end and an arcuate slot I 2 adjacent itsforward end. Member 9 is pivotally connected to member 8 by means of abolt I3 passing through hole II in member 8 and hole M in member 9.

Angular adjustment of member 9 in relation to member 8 about a verticalaxis is provided by means of a bolt l5 passing through slot l2 in member8 and a hole [9 in member 9. Member 9 has a pair of depending lugs I!and 18. Each of lugs l1 and i8 is provided with an elongated verticalslot [9 and 29 respectively. A guide 2| is vertically adjustably securedto member 9 by means of bolts 22 and 23 receivedin slots I9 and 20respectively. A carrier 24 is slidably mounted in the guide 2| formovement forwardly and rearwardly of the loom. A movable.

parting blade 25 and a movable clamping blade 26 are pivotally mountedon the carrier 24. These blades cooperate with blades 21 and 28 whichare fixed to the carrier.

The carrier and the parting and clamping blades are thus mounted infront of the shuttle box. They are moved to filling receivingposition, 1. e., rearwardly toward the shuttle box, prior to eachtransferring operation and are withdrawn forwardly from such positionsimultaneously with the transferring operation.

To this end a bracket member 29 is pivotally suspended from the stubshaft 4. Adjustably connected to bracket member 29 is another bracketmember 39. Bracket member 39 has one end turned downwardly and this endhas an elongated slot 3! therein for the reception of a pin (not visibleon the drawing) projecting from the carrier 24. Bracket member 29 has adownwardly turned end having an adjustable connection 32 with a lever33, the lever 33 may be connected to and actuated by the latchdepressor, not shown. Thus on the rearward movement of the latchdepressor, the brackets 29 and 30, and through the pin and slotconnection, the carrier 24, are moved rearwardly toward the shuttle box.

Simultaneously with the transferring operation the lay (or partsthereon) will strike screw 34 on the carrier, thus withdrawing orreturning the carrier forwardly.

Means are provided for opening and closing the parting and clampingblades. Such means may comprise a cam 35 carried by a bracket 36 mountedon guide 2| by.means of bolt 31. Cam 35 engages a pin 38 projecting fromthe movable blade 28 to move the blades to open position. A second cammechanism 39 operates to close the blades after they have been properlypositioned to sever the outgoing filling.

When cloth of a different type is to be woven or a change is made intype of yarn such as from cotton to rayon, there will be a variation inthe beat of the cloth, this variation if uncompensated for may produce atension on the last pick laid just before transfer, when the outgoingfilling end is withdrawn from the shuttle. To compensate for thisvariation in the beat of the cloth it is only necessary to loosen boltsl3 and i5 and adjust the member 8 in angular horizontal relation tomember 9 to change the angle of the path of reciprocation of the carrier24 thereby compensating for the change in the variation of the beat ofthe cloth.

Having thus described the preferred embodiment of my invention, I claim:

1. In an automatic replenishing loom, the combination of a lay having ashuttle box thereon, filling end parting and clamping mechanismincluding a carrier having parting and clamping blades mounted thereon,said carrier being adapted to reciprocate forwardly toward andrearwardly from the shuttle box, a support for supporting said partingand clamping mechanism in front of said shuttle box, and meansadjustably connecting said parting and clamping mechanism to saidsupport for movement in relation thereto about a vertical axis wherebythe angle which the path of reciprocation of said carrier makes withtheflongitudihal center line of the lay is adjustable.

2. .In an automatic replenishing loom, the combination of a lay having ashuttle box thereon, an adjustable support including a fixed memberlocated in front of the shuttle box and connected to a stationary partof the loom, a movable member connected to said fixed member andadjustable in relation thereto about a vertical axis and a parting andclamping mechanism including a carrier having parting and clampingblades mounted thereon, means for moving said carrier toward and fromsaid shuttle box in a substantially horizontal plane, a guide in whichsaid carrier reciprocates, said guide being attached to said movablemember, whereby the angle which the path of reciprocation of the carriermakes with the center line of the lay is adjustable.

3. In an automatic replenishing loom, the combination of a lay having ashuttle box thereon, an adjustable support located in front of saidshuttle lbox, said support comprising a fixed member connected to astationary part of the loom, a movable member pivotally connected tosaid fixed member adjacent one end thereof and adjustable in relationthereto about a vertical axis and means for clamping said members inadjusted position, and a parting and clamping mechanism including acarrier having parting and clamping blades mounted thereon, means formoving said carrier forwardly towards and rearwardly from the shuttlebox and actuating said blades, and a guide in which said carrierreciprocates, said guide being connected to said movable member; wherebythe angle which the path of reciprocation of the carrier makes with thecenter line of the lay is adjustable.

4. In an automatic replenishing loom, the combination of a lay having ashuttle box thereon, an adjustable support located in front of saidshuttle box and including a bracket adjustably attached to a stationarypart of the loom, a movable member pivotally connected to said bracketat one'end and having a slot and bolt connectionito said bracket at theother end whereby said movable member is adjustable in relation to saidbracket about a vertical axis and a parting and clamping mechanismincluding a carrier having parting and clamping blades mounted thereon,means for moving said carrier towardsand from the shuttle box in asubstantially horizontal plane, a guide in which said carrierreciprocates, said guide being attached to said movable' member; wherebythe angle which the path'of reciprocation of the carrier makes with thecenter line of the lay is adjustable.

5. In a filling end parting and clamping mechanism for fillingreplenishing looms having a lay and a shuttle box thereon, thecombination of a reciprocatory carrier having parting and clampingblades mounted thereon, said carrier being adapted to reciprocate in asubstantially horizontal plane towards and from the shuttle box,; aguide in which said carrier reciprocates, a support for supporting saidguide in front of said shuttle box, and means adjustably connecting'saidguide to said support for movement in relation thereto about a verticalaxis whereby the angle which the path of reciprocation of the carriermakes with the center line of the lay is adjustable.

6. In a filling end parting and clamping mechanism for fillingreplenishing looms having a lay and a shuttle box thereon, thecombination of a reciprocatory carrier having parting and clampingblades mounted thereon, means for moving said carrier forwardly towardsand rearwardly from the shuttle box, a guide in which said carrierreciprocates and a support for supporting said guide in front of theshuttle box, said support comprising a bracket adapted to be connectedto a stationary part of the loom, a movable member pivotally connectedto said bracket at one end and having a slot and bolt connectiontherewith at the other end whereby said memher is adjustable in relationto said bracket about a vertical axis, said guide being attached to saidmovable member; whereby the angle which the path of reciprocation of thecarrier makes with the center line of the lay is adjustable.

7. In an automatic replenishing loom, the combination of a lay having ashuttle box thereon, filling end parting and clamping mechanismincluding a carrier having parting and clamping blades mounted thereon,means for reciprocating said carrier towards and from the shuttle box ina substantially horizontal plane, a guide in which said carrierreciprocates and an adjustable support including a bracket attached to astationary part of the loom, a movable member pivotally connected tosaid bracket at one end and adjustably connected to said bracket at theother end for movement in relation to said bracket in a horizontal planeabout said pivotal connection, said guide being connected to saidmovable member; whereby the angle which the path of reciprocation of thecarrier makes with the lay is adjustable.

EDWARD C. NICHOLS.

